| Linear regression coefficients (95% confidence interval) | |
---|---|---|
Birth weight (g) (n = 319) | Birth length (mm) (n = 319) | |
PM2.5 | ||
 Crude | −48.19 (− 137.14; 40.4) | − 2.75 (−7.01; 1.51)) |
 Model 1 | −36.42 (− 123.52; 50.68) | − 2.46 (− 6.71; 1.80) |
 Model 2 | −65.09 (− 153.42; 23.23) | − 2.86 (− 7.24; 1.52) |
Soot | ||
 Crude | −36.60 (−99.67; 26.46) | − 3.55 (− 6;55; − 0.55)* |
 Model 1 | − 36.58 (− 98.11; 24.95) | −3.56 (− 6;54; − 0.57)* |
 Model 2 | − 39.15 (− 100.70; 22.41) | −3.78 (− 6;79; − 0.76)* |
NOx | ||
 Crude | −22.29 (− 74.87; 30.29) | −2.03 (− 4.42; 0.37) |
 Model 1 | − 24.97 (− 76.55; 29.30) | −2.23 (− 4.63; 0.17) |
 Model 2 | −38.11 (− 90.46; 14.22) | − 2.93 (− 5.38; − 0.48)* |
NO2 | ||
 Crude | − 21.49 (− 75.15; 31.17) | −1.97 (− 5.03; 1.09) |
 Model 1 | − 24.03 (− 75.05; 30.99) | −2.01 (− 5.08; 1.07) |
 Model 2 | −37.48 (− 90.44; 15.48) | − 2.50 (− 5.66; 0.65) |